# SDR ASAA2018121327436

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 13, 2018
- Submitted: December 18, 2018
- Operation: Air carrier
- Aircraft: [N471AS](https://openairdocs.org/aircraft/N471AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 41703
- Aircraft time: 16,861 hours, 5,533 cycles
- System (JASC): [2210 · Autopilot System](https://openairdocs.org/jasc/2210)
- Part: Warning System
- Condition: False Activation
- Location: Cockpit
- Stage of operation: DE
- How discovered: O
- Nature of condition: N
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2018121327436

## Discrepancy

SPEED TRIM FAIL LIGHT ILLUMINATED ON RECALL ON DESCENT. GROUNDED - YES. ACCOMPLISHED DFCS BITE TESTS. BITE TESTS PASS NO CURRENT STATUS FAULT FOUND. ACCOMPLISHED DFCS SPEED TRIM TEST. OPS GROUP 14 - OPS TEST PASSED REF AMM 22-11-00.

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